How to Calculate and Solve for Error | System Performance Characteristics

The image above represents error. Two essential parameters are needed to calculate error:Indicated Value and True Value.

The formula for calculating error:

E = I.V – T.V

Where:

E = Error
I.V = Indicated Value
T.V = True Value

Let’s solve an example;
Find the error when the indicated value is 22 and the true value is 10.

This implies that;

I.V = Indicated Value = 22
T.V = True Value = 10

So, E = I.V – T.V
E = 22 – 10
E = 12

Therefore, the error is 12.

Calculating for Indicated Value when the Error and the True Value are Given

I.V = E + T.V

Where;

I.V = Indicated Value
E = Error
T.V = True Value

Let’s solve an example;
Find the indicated value where the error is 32 and the true value is 15.

This implies that;

E = Error = 32
T.V = True Value = 15

Then, I.V = E + T.V
I.V = 32 + 15
I.V = 47

Therefore, the indicated value is 47.

Read more: How to Calculate and Solve for Percentage Error for Full Scale | System Performance Characteristics

Calculating for True Value when the Error and the Indicated Value are Given

T.V = E – I.V

Where;

T.V = True Value
E = Error
I.V = Indicated Value

Let’s solve an example;
Find the true value when the error is 40 and the indicated value is 28.

This implies that;

E = Error = 40
I.V = Indicated Value = 28

T.V = E – I.V
So, T.V = 40 – 28
T.V = 12

Therefore, the true value is 12.

Read more: How to Calculate and Solve for Percentage Error at any Point on the Instrument | System Performance Characteristics

How to Calculate Error in System Performance Characteristics Using Nickzom Calculator

Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the error.

To get the answer and workings of the error using the Nickzom Calculator – The Calculator Encyclopedia. First, you need to obtain the app.

You can get this app via any of these means:

Web – https://www.nickzom.org/calculator-plus

To get access to the professional version via web, you need to register and subscribe for NGN 2,000 per annum to have utter access to all functionalities.
You can also try the demo version via https://www.nickzom.org/calculator

Android (Paid) – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator
Android (Free) – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator
Apple (Paid) – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8
Once, you have obtained the calculator encyclopedia app, proceed to the Calculator Map, then click on Materials and Metallurgical under Engineering.

Now, Click on instrumentation under Materials and Metallurgical

So, Click on System Performance Characteristics under Instrumentation

Now, Click on Error under System Performance Characteristics

The screenshot below displays the page or activity to enter your values, to get the answer for the error according to the respective parameters which is the Indicated Value (I.V) and True Value (T.V).

Now, enter the values appropriately and accordingly for the parameters as required by the Indicated Value (I.V) is 22 and True Value (T.V) is 10.

Finally, Click on Calculate

As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves the error and presents the formula, workings, and steps, too.